RU2610588C2 - Вычисление отношения сигнал-шум конвертора с уменьшенной сложностью - Google Patents

Вычисление отношения сигнал-шум конвертора с уменьшенной сложностью Download PDF

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RU2610588C2
RU2610588C2 RU2015116854A RU2015116854A RU2610588C2 RU 2610588 C2 RU2610588 C2 RU 2610588C2 RU 2015116854 A RU2015116854 A RU 2015116854A RU 2015116854 A RU2015116854 A RU 2015116854A RU 2610588 C2 RU2610588 C2 RU 2610588C2
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control parameter
spectral
bitstream
audio
data rate
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RU2015116854A
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RU2015116854A (ru
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Михель Шуг
Филип УИЛЬЯМС
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Долби Интернешнл Аб
Долби Лабораторис Лайсэнзин Корпорейшн
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
RU2015116854A 2012-11-07 2013-11-04 Вычисление отношения сигнал-шум конвертора с уменьшенной сложностью RU2610588C2 (ru)

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US201261723687P 2012-11-07 2012-11-07
US61/723,687 2012-11-07
PCT/EP2013/072961 WO2014072260A2 (en) 2012-11-07 2013-11-04 Reduced complexity converter snr calculation

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EP (1) EP2917909B1 (https=)
JP (2) JP6113294B2 (https=)
KR (1) KR101726205B1 (https=)
CN (1) CN104781878B (https=)
BR (1) BR112015010023B1 (https=)
IN (1) IN2015DN04001A (https=)
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US10200519B2 (en) * 2016-08-11 2019-02-05 Telefonaktiebolaget Lm Ericsson (Publ) Systems and methods for dynamic switching of codec modes of operation used by a terminal
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JP7167335B2 (ja) * 2018-10-29 2022-11-08 ドルビー・インターナショナル・アーベー 生成モデルを用いたレート品質スケーラブル符号化のための方法及び装置
EP3719799A1 (en) * 2019-04-04 2020-10-07 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. A multi-channel audio encoder, decoder, methods and computer program for switching between a parametric multi-channel operation and an individual channel operation
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JP2015532981A (ja) 2015-11-16
US9208789B2 (en) 2015-12-08
IN2015DN04001A (https=) 2015-10-02
BR112015010023A2 (pt) 2017-07-11
JP6113294B2 (ja) 2017-04-12
CN104781878A (zh) 2015-07-15
EP2917909B1 (en) 2018-10-31
BR112015010023B1 (pt) 2021-10-19
US20140188488A1 (en) 2014-07-03
US9378748B2 (en) 2016-06-28
US20150269950A1 (en) 2015-09-24
RU2015116854A (ru) 2016-11-27
WO2014072260A2 (en) 2014-05-15
JP6474845B2 (ja) 2019-02-27
KR20150066565A (ko) 2015-06-16
EP2917909A2 (en) 2015-09-16
JP2017138610A (ja) 2017-08-10
WO2014072260A3 (en) 2014-07-10
CN104781878B (zh) 2018-03-02
KR101726205B1 (ko) 2017-04-12

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